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As cameras become cheaper and gain popularity, vision-based input devices are highly desired and may now become a feasible solution. In this paper, a vision-based virtual piano mechanism is proposed. By tacking and analyzing the motion of the fingertips, the system can detect keystrokes and play the corresponding note on a seven-key virtual piano. Experimental results show the precision and efficiency...
Different categories of crime, location, victim and offender details have a national security concerns. Premises surveillance needs are growing. One of the surveillance systems is the closed-circuit television (CCTV) that able to provide information about the crime. With the increase in wide usage of the system, more technical flexibility for CCTV systems is required. Human detection techniques can...
A multiple faces tracking system was presented based on Relevance Vector Machine (RVM) and Boosting learning. In this system, a face detector based on Boosting learning is used to detect faces at the first frame, and the face motion model and color model are created. In the tracking process different tracking methods are used according to different states of faces, and the states are changed according...
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